To Check Refrigerant Piping Joints For Leaks After Charging Refrigerant; To Fix The Fluorinated Greenhouse Gases Label - Daikin RXM20A5V1B Installer's Reference Manual

8 | Charging refrigerant

8.7 To check refrigerant piping joints for leaks after charging refrigerant

8.8 To fix the fluorinated greenhouse gases label

Installer reference guide
46
If pump down is needed in case of dismantling or relocating the system, see
4
"16.2 To pump down" [
1 Perform the leak tests see
2 Charge refrigerant.
3 Check for refrigerant leaks after charging (see below)
Tightness test of field-made refrigerant joints indoors
1 Use a leakage test method with a minimum sensitivity of 5 g of refrigerant/
year. Test leaks using a pressure of at least 0.25 times the maximum working
pressure (see "PS High" on the unit nameplate).
If a leak is detected
1 Recover the refrigerant, repair the joint, and repeat the test.
1 Fill in the label as follows:
Contains fluorinated greenhouse gases
RXXX
f
GWP: XXX
2
1
+
1
GWP × kg
1000
a If a multilingual fluorinated greenhouse gases label is delivered with the unit (see
accessories), peel off the applicable language and stick it on top of a.
b Factory refrigerant charge: see unit name plate
c Additional refrigerant amount charged
d Total refrigerant charge
e Quantity of fluorinated greenhouse gases of the total refrigerant charge
expressed as tonnes CO
f GWP = Global Warming Potential
NOTICE
Applicable legislation on fluorinated greenhouse gases requires that the refrigerant
charge of the unit is indicated both in weight and CO
Formula to calculate the quantity in CO
refrigerant × total refrigerant charge [in kg] / 1000
Use the GWP value mentioned on the refrigerant charge label.
2 Fix the label on the inside of the outdoor unit near the gas and liquid stop
valves.
64] for more details.
"7.3 Checking the refrigerant
a
kg b
1 =
kg c
2 =
d
kg
2
=
=
e
tCO eq
2
equivalent.
2
piping" [ 4
equivalent.
2
equivalent tonnes: GWP value of the
2
4P718129-3A – 2023.07
40].
RXM-A, ARXM-A
R32 split series